The raw material of 316 stainless steel seamless steel pipe is 316 stainless steel strip processed by advanced production technology, which is cold drawn into seamless pipes. Different sizes and shapes can be customized according to customer requirements.
Production process of 316 stainless steel seamless pipes
1. Pre-treatment: 316 stainless steel strip is processed through multiple processes such as scrubbing, degreasing and polishing to ensure a clean, smooth and flawless surface.
2. Cold-drawn pipe making: The pre-treated 316 stainless steel strip is made into seamless pipes through multiple processes such as cold rolling, cold drawing and cold extrusion.
3. Post-treatment: The seamless pipes are processed through multiple processes such as annealing, pickling and brightening to improve the performance of the steel, further improve the surface quality and extend the service life.
Performance characteristics of 316 stainless steel seamless steel pipes
1. Excellent corrosion resistance: 316 stainless steel seamless pipe has high corrosion resistance, including no corrosion in acidic, alkaline or high temperature environment.
2. High strength: 316 stainless steel seamless pipe has high strength at room temperature and can withstand large external loads.
3. Good processing performance: 316 stainless steel seamless pipe is easy to make into pipes of different shapes and specifications, suitable for various processing equipment.
Advantages of 316 stainless steel seamless pipes
1. Excellent corrosion resistance: Containing alloy elements such as chromium, nickel, and molybdenum, it performs well in a variety of corrosive media, especially in environments containing chloride ions, such as seawater, chemical wastewater, etc. It has strong corrosion resistance and can maintain stable performance for a long time, reducing the risk of leakage and damage of pipelines due to corrosion. It is suitable for chemical, marine engineering, papermaking and other industries.
2. Good high temperature resistance: It can still maintain good performance in high temperature environment, has good heat resistance and oxidation resistance, has good oxidation resistance in intermittent use below 1600 degrees and continuous use below 1700 degrees, can meet the needs of high temperature equipment manufacturing and high temperature fluid transportation, such as high temperature reactors, heat exchangers and other equipment in petrochemical industry.
3. High mechanical strength: It has high yield strength, tensile strength and good toughness, can withstand greater pressure and impact, and performs well in high-pressure transmission pipelines, building structure support, etc., ensuring the safety and reliability of the pipe during use.
4. Good processing performance: It can be processed by various processing techniques, such as welding, bending, cutting, etc. It is easy to form and install, can meet the needs of different projects, and is convenient for manufacturing pipes and equipment components of various shapes and specifications. Its strong processability helps to improve production efficiency and reduce costs.
5. Good hygienic performance: The surface is smooth, non-toxic, and not easy to breed bacteria. It meets the hygienic standards of the food and pharmaceutical industries. It is often used in food processing, beverage production, pharmaceuticals, medical devices and other fields with strict hygiene requirements to ensure product quality and safety.
Disadvantages of 316 stainless steel seamless pipes
1. Relatively high cost: Because it contains more alloying elements, such as nickel and molybdenum, the prices of these elements are relatively high, resulting in the manufacturing cost of 316 stainless steel seamless pipes being much higher than that of ordinary carbon steel or low-alloy steel pipes, which to a certain extent limits its large-scale application in some cost-sensitive fields.
2. Strength limitation: Although it has high strength, its strength may still not meet the requirements under certain special working conditions with ultra-high strength requirements, and further special strengthening treatment or selection of other high-strength materials are required.
3. Sensitive to specific corrosive environments: In some extreme corrosive environments, such as complex media with strong acidity, strong alkalinity and containing specific corrosive ions, local corrosion phenomena such as pitting corrosion and crevice corrosion may occur. Although its corrosion resistance is generally good, it still needs to be fully evaluated and corresponding protective measures should be taken according to the specific use environment.
4. Susceptible to wear: The wear resistance is relatively general. When conveying fluids containing particulate impurities or in a high-friction working environment, the inner wall of the pipeline is easily worn, resulting in thinning of the wall thickness, increased surface roughness, etc., affecting the service life and transportation efficiency of the pipeline. Additional wear-resistant protection measures may be required.
Uses of 316 stainless steel seamless pipes
1. Petroleum and chemical industry: 316 stainless steel seamless pipes can be used to transport oil and natural gas, and to manufacture chemical equipment.
2. Medicine and biopharmaceuticals: 316 stainless steel seamless pipes are used in bioreactors and pharmaceutical equipment.
3. Food and beverage industry: 316 stainless steel seamless pipes can be used to manufacture food and beverage processing equipment, such as beer, dairy products and candy.
4. Aviation and aerospace industry: 316 stainless steel seamless pipes can be used to manufacture aircraft, rockets, missiles and other aviation devices.
5. Construction and decoration industry: 316 stainless steel seamless pipes can be used as construction and decoration materials, such as stainless steel handrails and guardrails.
